A quick look through the VR tech info shows they are beginning to build support for various controllers and head sets. The basic strategy seems to be Microsoft like, make the API easy to use, document it, and let people build whatever they need.

What we have seen is companies building the content, think Sansar, so people would have a reason to use VR. With reasons beginning to appear the current obstacle is the incompatibility between headsets. This Firefox change is hopefully the first wave of building in compatibility that will allow any VR head set to be used with any VR content.